Table 7
Simulation of correction factors for the surface brightness sbcorr and aperture photometry apcorr as function of cloud diameter ⊘ cl [pix] calculated for the R Aqr CntHa PSF from Oct. 11, 2014.
| ⊘ cl | s b corr | a p corr | ||||
| ⊘ bck = | ⊘ cl+20 | ⊘ ap = | ⊘ cl+10 | ⊘ cl+20 | ⊘ cl+40 | |
|
|
||||||
| < 1 | > 1000 | 31.9 | 8.20 | 4.63 | ||
| 6 | 28.5 | 13.4 | 6.30 | 4.38 | ||
| 10 | 12.5 | 10.0 | 5.76 | 4.27 | ||
| 20 | 5.90 | 7.29 | 5.08 | 4.08 | ||
| 40 | 4.33 | 5.83 | 4.54 | 3.86 | ||
| 60 | 3.98 | 5.30 | 4.29 | 3.76 | ||
| 100 | 3.78 | 4.92 | 4.11 | 3.68 | ||
| 200 | 3.20 | 4.20 | 3.58 | 3.20 | ||
Notes. The diameter of the ring used for the sb-background determination is ⊘ bck, and ⊘ ap is the diameter for the circular flux aperture.
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